Mittendorfer Family from Wels, Oberösterreich, Austria

Mittendorfer Family from Wels, Oberösterreich, Austria

Trying to find information and or dates of birth/death for a Karl Mittendorfer and his wife, Barbara Gunhuber. They may have had a very large number of children around the early 1910-20s. If anyone can help me, it is very much appreciated. Thanks in advance.AnnetaS